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RNA interference in Lepidoptera: an overview of successful and unsuccessful studies and implications for experimental design.
Gene silencing through RNA interference (RNAi) has revolutionized the study of gene function, particularly in non-model insects. However, in Lepidoptera (moths and butterflies) RNAi has many timesExpand
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Stimulatory effect of LH, PGE2 and progesterone on StAR protein, cytochrome P450 cholesterol side chain cleavage and 3beta hydroxysteroid dehydrogenase gene expression in bovine luteal cells.
The aim of these studies was to investigate the effect of LH, progesterone (P4), PGE, noradrenaline (NA) and a nitric oxide donor, S-nitroso-N-acetylpenicillamine (S-NAP), on steroid acute regulatoryExpand
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Regulation of progesterone synthesis and action in bovine corpus luteum.
The main function of the corpus luteum (CL) is to synthesize and secrete progesterone (P4), which regulates the duration of the estrous cycle and maintains of pregnancy in many species. BothExpand
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The putative roles of nuclear and membrane-bound progesterone receptors in the female reproductive tract.
Progesterone produced by the corpus luteum (CL) is a key regulator of normal cyclical reproductive functions in the females of mammalian species. The physiological effects of progesterone areExpand
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Leptin Directly Controls Secretory Activity of Human Ovarian Granulosa Cells: Possible Inter-Relationship with the IGF/IGFBP System
Aims: The aim of our in vitro studies was to understand the role of leptin and the insulin-like growth factor I/insulin-like growth factor protein (IGF/IGFBP) system in controlling human ovarianExpand
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Oxytocin modulates the pulsatile secretion of prostaglandin F2alpha in initiated luteolysis in cattle.
Subluteolytic doses of prostaglandin F2alpha analogue (oestrophan) given i.m. and oxytocin (OT) antagonist (CAP) and noradrenaline (NA) infused into the abdominal aorta were used to test theExpand
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Role of prostaglandin E2 in basal and noradrenaline-induced progesterone secretion by the bovine corpus luteum.
The role of prostaglandin E2 (PGE2) in basal and noradrenaline (NA)-stimulated utilization of high density lipoprotein (HDL) as a source of cholesterol for progesterone synthesis was examined. InExpand
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In vitro effects of polychlorinated biphenyls (PCBs) on the contractility of bovine myometrium from the periovulatory stage of the estrous cycle.
Strips of longitudinal myometrium from cows were obtained on days 19-21 and 1-5 of the estrous cycle and incubated (aerated atmosphere; 4 degrees C; 24, 48 or 72 h) with a mixture of PCBs AroclorExpand
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Thrombopoietin regulates proliferation, apoptosis, secretory activity and intracellular messengers in porcine ovarian follicular cells: involvement of protein kinase A.
Thrombopoietin (TPO) is known to be involved in megakariocytopoesis, but its role in the control of ovarian function is unknown. The aims of this study were to determine whether TPO can regulate theExpand
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A subovarian exchange mechanism for the countercurrent transfer of ovarian steroid hormones in the pig.
Sow ovaries with their ovarian pedicle were isolated and supplied with blood from the middle uterine artery. During the 30 min of infusion with [3H]testosterone into the ovarian vein 3 cm below theExpand
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